The former Suits actress broke Royal tradition by having her shoulders on display during the event at Buckingham Palace.

People were quick to criticise Meghan’s outfit, with many taking to Twitter to air their views.

GETTY

TROOPING THE COLOUR: This was Meghan and Prince Harry's first appearance since their honeymoon

Meghan Markle's FIRST royal engagement as Duchess of Sussex

The royal couple, Meghan Markle and Prince Harry have been photographed in their first royal engagement since they tied the knot last Saturday. The event is part of the celebrations to mark the70th birthday of the Prince of Wales.

1 / 14

PA

The Duchess of Sussex at a garden party at Buckingham Palace in London

“Kate will ALWAYS be the classy one”

Twitter

Twitter users were not happy about her decision to reveal a little skin, with many claiming it was inappropriate.

One person wrote: “Kate will ALWAYS be the classy one. Who wears an off-the-shoulder number to such an event? Oh MM, that’s not right.”

Another said: “The poor lady can’t win. If she tOnes down her outfit she’s bashed for being too plain. If she dresses up she’s accused of stealing the limelight. SMH [shaking my head].”

Harry and Meghan rumoured to spend honeymoon at this Canadian resort

NEWLYWEDS Prince Harry and Meghan Markle are reportedly set to spend part of their honeymoon in a lavish Canadian resort.

1 / 11

Getty•Alamy

Harry and Meghan rumoured to spend honeymoon at this Canadian resort

A third added: “Lady? She will never be a lady. She broke the royal protocol again by wearing a sexy dress when a more discreet outfit was de rigueur and not a ‘off shoulder dress’.

"She will never learn because she craves the limelight.”

While a fourth slammed: “Happy for MM and HRH Prince Harry. However, her off the shoulder dress is inappropriate. She needs to ease her style changes.”

Harry and Meghan's Royal Wedding in pictures

Harry and Meg are now hitched!

1 / 33

PA Wire/PA Images

The Duke and Duchess pose with pageboys and bridesmaids for an offical portriat